# Blackboard vs 00

The clearest difference is review sentiment: 00 at 100% against Blackboard's 0%. 00 also leads on in-app purchases (none vs 1) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Blackboard sells 1 one-off in-app purchase. 00 asks for nothing beyond the download.

Blackboard ships an update every 4 months, 00 every 2 months. The most recent releases landed on October 26, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Blackboard | 00 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (2 ratings)](https://appshunter.io/ios/app/blackboard-stopwatch/id1470227478/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 11 MB | 42 MB |
| Requires iOS | 16.0 | **10.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Filippo Gozza](https://appshunter.io/developer/954580932) | [Adriaan de Jongh](https://appshunter.io/developer/965628077) |

## What reviewers say

### Blackboard

[App page](https://appshunter.io/ios/app/blackboard-stopwatch/id1470227478)

A straightforward stopwatch app featuring oversized digits for easy visibility. It offers single-button control for starting, stopping, and resetting. With optional Bluetooth integration and a photocell, it can function as a race display, expanding its utility.

**Highlights:** Oversized digits, Single-button control (start, stop, reset), Bluetooth device integration, Photocell compatibility, External Bluetooth button support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version | $2.99 | one-time |


### 00

[App page](https://appshunter.io/ios/app/0036/id1484981309)

This app serves as a companion for your movement practice, offering tools like timers, breaks, and a metronome. It also provides advanced partner instructions to guide your sessions.

**Highlights:** Timers and breaks, Advanced partner instructions, Metronome, Movement practice companion

**In-app purchases:** none


## Frequently asked questions

### Is Blackboard free?

Blackboard is free to download, with in-app purchases available.

### Is 00 free?

00 is free to download, with no in-app purchases.

### Do Blackboard or 00 have ads?

Blackboard shows ads; 00 does not.

### Which is updated more often, Blackboard or 00?

Blackboard ships an update every 4 months, and 00 every 2 months. Most recently, Blackboard was updated on October 26, 2026 and 00 on October 16, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*